The citation basics in one sentence: whenever you use someone else’s words, ideas or data, you name the source in your text and list it in full in your reference list. Citing is a fundamental aspect of academic writing. It allows readers to trace the origins of information and ensures that creators are properly acknowledged.
Definition of Citation
A citation is a reference in your text that shows where a quotation, idea, fact or figure comes from. It has two parts: a short reference in the text (in brackets or a footnote) and a full entry in the reference list or bibliography, so readers can find the original source.
Make sure you always provide exact bibliographic details when citing.
Why is Citing Important?
Citing is important for several reasons, such as avoiding plagiarism, acknowledging the work of others, and strengthening one’s own arguments.
Even the unintentional omission of a source citation can be considered plagiarism and have serious academic consequences.
Which bibliographic details do you need?
| Source type | Details to record |
|---|---|
| Book | Author(s), year, title, edition (if not the first), publisher |
| Journal article | Author(s), year, article title, journal title, volume, issue, page range, DOI |
| Web page | Author or organisation, date, page title, site name, URL |
| Direct quotation | Additionally the page number, or another locator such as a paragraph number |
What do you need to cite?
Cite every direct quotation, every paraphrase, and every idea, figure, data set or image you take from someone else. Common knowledge that is widely known and undisputed does not need a citation; when in doubt, cite. If you used AI tools, check how your university expects you to disclose AI use.
The Different Citation Styles
There are various citation styles, which differ depending on the field of study and publication. The most well-known are APA, MLA, Chicago, and Harvard.
| Citation Style | Field of Study | Characteristics |
|---|---|---|
| APA | Social Sciences | Emphasis on the year of publication |
| MLA | Humanities | Author and page number are emphasized |
| Chicago | History, Arts | Use of footnotes and endnotes |
| Harvard | Various | Author-Year System |
APA Style in Detail
The APA citation style is frequently used in the social sciences. It emphasizes the year of publication and the author.
In APA in-text citations, you should mention the author’s last name and the year of publication.
| Element | In-Text Citation | Bibliography |
|---|---|---|
| Book | (Müller, 2020) | Müller, A. (2020). Title of the Book. Publisher. |
| Journal Article | (Schmidt & Weber, 2019) | Schmidt, B., & Weber, C. (2019). Title of the article. Journal Title, Volume(Issue), 456–478. |
MLA Style in Detail
The MLA style is primarily used in the humanities. It emphasizes the author and page number.
In MLA style, no year of publication is cited in the text, only the author and page number.
| Element | In-Text Citation | Bibliography |
|---|---|---|
| Book | (Müller 45) | Müller, Anna. Title of the Book. Publisher, 2020. |
| Journal Article | (Schmidt and Weber 123) | Schmidt, Bernd, and Claudia Weber. “Title of the Article.” Journal Title, vol. 12, no. 3, 2019, pp. 123-145. |
Chicago Style in Detail
Chicago offers notes-and-bibliography and author-date systems. The notes-and-bibliography examples below are commonly used in history and the arts and follow the 18th edition (2024), which no longer requires the place of publication for books.
In Chicago style, use footnotes for detailed information and a bibliography at the end of your work to list all sources.
| Element | Footnote/Endnote | Bibliography |
|---|---|---|
| Book | 1. Müller, Title of the Book, 34. | Müller, Anna. Title of the Book. Publisher, 2020. |
| Journal Article | 2. Schmidt and Weber, “Title of the Article,” 456. | Schmidt, Bernd, and Claudia Weber. “Title of the Article.” Journal Title 12, no. 3 (2019): 456-78. |
Harvard Style in Detail
The Harvard style, used in many different disciplines, is characterized by an author-year citation system.
In Harvard style, cite the author and year in the text and list all sources in an alphabetically ordered bibliography.
| Element | In-Text Citation | Bibliography |
|---|---|---|
| Book | (Müller, 2020, p. 34) | Müller, A. (2020) Title of the Book. Edition. Place: Publisher. |
| Journal Article | (Schmidt and Weber, 2019, p. 456) | Schmidt, B. and Weber, C. (2019) ‘Title of the article’, Journal Title, Volume(Issue), pp. 456–478. |
6 Common Citation Mistakes
It’s important to know and avoid common citation mistakes to maintain the credibility and integrity of your work. Checking your references again when you proofread your academic text is the safest way to catch them.
| Mistake | Example | Prevention Strategy |
|---|---|---|
| Incorrect Formatting | Using MLA style instead of APA in a psychology paper. | Check the specific requirements of your field and institution. |
| Incomplete Information | Omitting a required author, date or title from a reference. | Ensure that all required information is included in your citation. |
| Inconsistent Citation Style | Alternating between APA and MLA in the same paper. | Consistently use the same citation style throughout your work. |
| Ignoring Online Sources | Not citing digital sources. | Treat online sources with the same care as printed sources. |
| Missing Page Numbers in Direct Quotes | Omitting the page number in a direct quote. | Include a page number where available, or another suitable locator for an unpaginated source, following your citation style. |
| Excessive Quoting | Too many quotes in a paragraph. | Use quotes purposefully, paraphrase in your own words where possible and add your own analysis. |
Do’s & Don’ts of Citation
Below, you’ll find important do’s and don’ts to help you avoid mistakes in citation.
Do’s:
- Accuracy: Ensure that all citations are correct and complete.
- Follow Guidelines: Adhere to the specific citation rules of your field and institution.
- Verify Sources: Ensure that all your sources are reliable and up-to-date.
Don’ts:
- Do Not Fail to Cite: Never take over the work of others without properly citing it.
- Avoid Unreliable Sources: Do not rely on sources whose credibility or accuracy is doubtful.
- Avoid Plagiarism: Never present the work of others as your own, even in part, and keep in mind that plagiarism can occur despite a citation if the reference is incomplete or misleading.
Conclusion
Citing is an essential part of academic work. It demonstrates not only your thorough research but also ensures the integrity and credibility of your work.
Carefully check your bibliography and your in-text citations to ensure that they meet the requirements of your chosen citation style, including after you have exported your reference list into Word.
By applying the correct citation techniques, you can avoid the common types of plagiarism, acknowledge the work of others, and strengthen your own research.
Mimir Mentor helps with the groundwork: the literature search keeps the bibliographic details of your sources together, and the plagiarism check flags passages that may still need a citation before you submit.
Mimir Mentor is GDPR-compliant, with servers in the European Union. Your document is deleted after 30 days at the latest and is never added to a public database. More than 70,000 students already use the platform.
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FAQ
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Why is citing important?
Citing is important to avoid plagiarism, acknowledge the work of others, and to support your own arguments.
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What are the most common citation styles?
The most well-known citation styles are APA, MLA, Chicago, and Harvard, which are used depending on the field of study and publication.
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How do I choose the right citation style?
The right citation style depends on your field of study, the requirements of your institution, and the type of publication. If you are unsure which citation style to use, ask your supervisor.
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What are common mistakes in citing?
Common mistakes include incorrect formatting, incomplete information, inconsistent citation style, and neglecting online sources.
